Titanium foam builds Wolverine bones - health - 23 September 2010 Eat your heart out, Wolverine. The X-Men superhero won't be the only one with metal fused into his skeleton if a new titanium foam proves suitable for replacing and strengthening damaged bones. Bone implants are typically made of solid metal – usually titanium. Though well tolerated by the body, such implants are significantly stiffer than bone. This means that an implant may end up carrying a far higher load than the bone it is placed next to, according to Peter Quadbeck of the Fraunhofer Institute for Manufacturing Technology and Advanced Materials Research in Dresden, Germany. In a worst-case scenario, the decrease in stress placed on the bone means it will deteriorate, while the implant loosens and needs to be replaced.
The mammalian 5-HT2A receptor is a subtype of the 5-HT2 receptor that belongs to the serotonin receptor family and is a G protein-coupled receptor (GPCR). This is the main excitatory receptor subtype among the GPCRs for serotonin (5-HT), although 5-HT2A may also have an inhibitory effect on certain areas such as the visual cortex and the orbitofrontal cortex. This receptor was first given importance as the target of serotonergic psychedelic drugs such as LSD. Later it came back to prominence because it was also found to be mediating, at least partly, the action of many antipsychotic drugs, especially the atypical ones. 5-HT2A may be a necessary receptor for the spread of the human polyoma virus called JC virus. Downregulation of post-synaptic 5-HT2A receptor is an adaptive process provoked by chronic administration of SSRIs and classical antipsychotics. 5-HT2A receptor
@LeonBA: Good thing there's no such thing as a spirit! But even on the science side of things, you might not be the same person anymore. One can think of the brain as an organic computer. If you stop all the electricity, and start it up again, it's essentially a new instance running. It has all the memories and whatnot to fall back on, but it might be a new consciousness (instance). Human Trial Suspended Animation Treatment Set to Begin at Mass General
About the project Many people are interested in what is called neurofeedback or EEG biofeedback training, a generic mental training method which makes the trainee consciously aware of the general activity in the brain. This method shows great potential for improving many mental capabilities and exploring consciousness. Other people want to do experiments with brain-computer interfaces or just want to have a look at their brain at work. Unfortunately, commercial EEG devices are generally too expensive to become a hobbyist tool or toy. The OpenEEG project is about making plans and software for do-it-yourself EEG devices available for free (as in GPL).